Home / 7,859.78-11,789.67-2,016.39

Finding the Fourth Proportional to 7,859.78, 11,789.67 and 2,016.39

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Solution

The fourth proportional to 7,859.78, 11,789.67 and 2,016.39 is: 3,024.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,859.78 : 11,789.67 = 2,016.39 : x
  2. Step 2: Convert to fraction form
    7,859.78/11,789.67 = 2,016.39/x
  3. Step 3: Cross multiply
    7,859.78x = 11,789.67 × 2,016.39
  4. Step 4: Simplify right side
    7,859.78x = 23,772,572.69
  5. Step 5: Solve for x
    x = 23,772,572.69/7,859.78
  6. Step 6: Final answer
    x = 3,024.59

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.